TY - JOUR
T1 - Experimental determination of zirconium hydride precipitation and dissolution in zirconium alloy
AU - Lacroix, E.
AU - Motta, A. T.
AU - Almer, J. D.
N1 - Funding Information:
This research was funded by DOE NEUP project 13–5180 of the US Department of Energy. We also thank Peter Kenesei, Jun-Sang Park and Pierre-Clément Simon for their help in performing the experiment. We thank the Penn State Nanofab staff for their assistance in the preparation of the samples. Use of the Advanced Photon Source was supported by the U.S. Department of Energy, Office of Basic Energy Sciences under Contract No. DE-AC02- 06CH11357 .
Publisher Copyright:
© 2018
PY - 2018/10
Y1 - 2018/10
N2 - Synchrotron X-Ray transmission diffraction experiments were performed to study hydride precipitation and dissolution in the zirconium/zirconium-hydride system while it occurs. Evidence was found that the hysteresis between the terminal solid solubility for precipitation and dissolution is not observed when hydride particles are already present at the beginning of sample cooldown. Furthermore, experimental results show that, during a temperature hold, the concentration of hydrogen in solid solution becomes lower than the terminal solid solubility for hydride precipitation and eventually reaches the terminal solid solubility for hydride dissolution, indicating that the latter is the actual thermodynamic solubility limit.
AB - Synchrotron X-Ray transmission diffraction experiments were performed to study hydride precipitation and dissolution in the zirconium/zirconium-hydride system while it occurs. Evidence was found that the hysteresis between the terminal solid solubility for precipitation and dissolution is not observed when hydride particles are already present at the beginning of sample cooldown. Furthermore, experimental results show that, during a temperature hold, the concentration of hydrogen in solid solution becomes lower than the terminal solid solubility for hydride precipitation and eventually reaches the terminal solid solubility for hydride dissolution, indicating that the latter is the actual thermodynamic solubility limit.
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U2 - 10.1016/j.jnucmat.2018.06.038
DO - 10.1016/j.jnucmat.2018.06.038
M3 - Article
AN - SCOPUS:85049302455
VL - 509
SP - 162
EP - 167
JO - Journal of Nuclear Materials
JF - Journal of Nuclear Materials
SN - 0022-3115
ER -